Home / 220,412,455.52-304,171,986.72-121,304,613.92

Finding the Fourth Proportional to 220,412,455.52, 304,171,986.72 and 121,304,613.92

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Solution

The fourth proportional to 220,412,455.52, 304,171,986.72 and 121,304,613.92 is: 167,401,907.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,412,455.52 : 304,171,986.72 = 121,304,613.92 : x
  2. Step 2: Convert to fraction form
    220,412,455.52/304,171,986.72 = 121,304,613.92/x
  3. Step 3: Cross multiply
    220,412,455.52x = 304,171,986.72 × 121,304,613.92
  4. Step 4: Simplify right side
    220,412,455.52x = 36,897,465,414,348,968
  5. Step 5: Solve for x
    x = 36,897,465,414,348,968/220,412,455.52
  6. Step 6: Final answer
    x = 167,401,907.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.